Description
Return nominal and offset-corrected arch-ring thickness.
Architectural curves, stairs and roof planes can be described by ideal radii, angles, linear slopes and reference heights. Arc length differs from chord length, and a plan diagonal differs from a sloping member’s length. These local geometry terms do not evaluate structural capacity or building requirements.
Return nominal and offset-corrected arch-ring thickness.
When to use this tool
Use Arch Intrados Extrados Radius Gap when checking the stated ideal curve, tread, slope or reference-plane term.
How to use the tool and how it works
- Enter intrados, extrados, measurementOffset. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read nominalThickness, correctedThickness. Use the output convention below.
Return nominal and offset-corrected arch-ring thickness. Require 0 <= intrados <= extrados; nominal = extrados-intrados, corrected subtracts measurementOffset.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| intrados | Intrados | Required. Finite number; minimum 0. |
| extrados | Extrados | Required. Finite number. |
| measurementOffset | Measurement Offset | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| nominalThickness | Nominal Thickness | Required. Finite number. |
| correctedThickness | extrados-intrados-measurementOffset; may be negative. | Required. Finite number. |
{
"input": {
"intrados": 2,
"extrados": 2.5,
"measurementOffset": 0.1
},
"output": {
"nominalThickness": 0.5,
"correctedThickness": 0.4
}
}Limitations and assumptions
- Corrected thickness may be negative; radii, measurement correction and structural adequacy are not verified.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use a complete spatial design, verified dimensions and qualified professional review for structural, accessibility and construction decisions.
References
Similar or alternative tools
- Arch Segment Radius From Rise Span
Return a circular-segment radius from rise and span.
- Masonry Opening Arch Ring Area
Return annular arch-sector area.